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Whether you are new to Amateur Radio or a long-time operator, the first thing we want anyone interested in membership to understand is the Cactus Intertie System is not your typical local ham radio club.  Our system is widespread and somewhat complex in how it operates.  This system is not for someone who simply wants to pick up their mic and talk into a single repeater.  As a member, you are considered a "control operator" for dozens of repeaters.  This means as a member, you must learn how the entire system works and be able to learn how to control the system and its connectivity.

Most people who stumble upon one of our remote base repeaters, don't understand what they have stumbled upon.  They often get on the air and ask for a radio check, not understanding they are going into one particular repeater site near them and coming out over a wide area network of repeaters in various states.  It is important, if you are seriously considering membership, to take some time and listen to the system. Listen to what people are talking about and truly decide if you desire to become involved in this type of operation. The system offers a unique blend of both technical and personal discussions.  Remember as you listen, often members are talking to each other from various locations throughout the United States.

If you decide that Cactus Intertie System membership is for you and membership would offer you the unique aspect of Amateur Radio you desire, we encourage you to listen for the call-signs of the members talking to see if you know someone. With over 500 members the chances are fairly good that you will hear someone you know. However, if you don't know any members, don’t be discouraged.  While we prefer you are recommended by a current member who can also serve as a mentor or Elmer, it is not required for membership consideration.

Please understand; we are not trying to discourage anyone from requesting membership into our organization. However, we are seeking potential members who are committed to involving themselves and who understand what our organization is all about.  We simply don’t want anyone to join and then shortly thereafter drop out because they did not find satisfaction with our organization.  We want you to make the right decision for you and we want individuals who want to be involved in bettering what we do for both our organization and the public services we support.

Cactus Intertie, Inc. (CII), as well as all of the affiliated clubs, are private, dues paying membership organizations (See Affiliate Clubs section on website for an affiliate in your area). In order to use any of the Cactus Intertie System you must be a member of either CII or one of the affiliated clubs, depending upon the area in which you reside and where most of your operating will occur.

To be considered for membership for Cactus Intertie, Inc., you must first complete the Application Form available below and submit it to membership @ cactus-intertie . org (delete extra spaces).  The Application Form must be fully completed, otherwise your request may be denied.  You may also print out the application and mail it to us if you feel more comfortable with that method of communication.

Cactus Intertie, Inc.
1107 Fair Oaks Avenue #142
South Pasadena, Ca. 91030-3311

CLICK HERE to download the application.

Once your application is received and reviewed, a representative from our organization will contact you.
PLEASE NOTE:  If you are located in the areas supported by Cactus Intertie, Inc., the information on our Membership Application contains all the information necessary for you to pursue membership in CII. However, if you live elsewhere, your request will be forwarded to the affiliated group in your local area who will have the responsibility to contact you for further information.

Thank you in advance for your interest in our organization.

Cactus Intertie, Inc. Membership Donation

For use by existing CII Members and CII Applicants

Membership Dues Donations may be made in one of four ways:


Mail check for $155.00 to:

Cactus Intertie, Inc.
1107 Fair Oaks Ave, #142
South Pasadena, CA 91030-3311


Click on Donate button
below to submit
$155.00 (incl. fees)
using PayPal Account
or Credit Card


to your Venmo app
and Scan QR Code below

Tap DONATE button and
enter $155.00 (incl fees)
plus Callsign and "Membership".


Logon to your bank account
having Zelle authority and
send $155.00 to:


NOTICE: Effective July 1, 2023 Membership Dues Donation
is set at $155.00 using all forms of payment.